Water filter



1. Water filter

1.1 is a front elevation view.

1.2 is a left side elevation view.

1.3 is a right side elevation view.

1.4 is a bottom plan view.

1.5 is a top plan view.

1.6 is a rear elevation view.

1.7 is a top and left side perspective view. 

CLAIM The ornamental design for a water filter, as shown and described. 